Variations in the cystic duct: frequency and the relationship among insertion sides and heights on the bile duct.

Background: Evaluation of the cystic duct anatomy prior to bile duct or gallbladder surgery is important, to decrease the risk of bile duct injury. This study aimed to clarify the frequency of cystic duct variations and the relationship between them.

Methods: Data of 205 patients who underwent cholecystectomy after imaging at Sada Hospital, Japan, were analyzed.

Usefulness of several factors and clinical scoring models in preoperative diagnosis of complicated appendicitis.

Background: The preoperative distinction between uncomplicated and complicated appendicitis is important to determine the appropriate treatments, such as antibiotics, surgery, or interval appendectomy. Computed tomography (CT) plays an important role; however, combining clinical and imaging factors may make preoperative evaluation more reliable. This study evaluated and analyzed cases and the usefulness of several preoperative factors and clinical scoring models to detect complicated appendicitis.

Multiple Esophageal Squamous Papillomas.

We report a rare case of multiple esophageal squamous papillomas (ESPs). A 42-year-old man underwent a medical examination, and abnormalities of multiple elevated lesions were noted using a esophagogastroduodenoscope. He underwent upper gastrointestinal tract radiography with an orally ingested barium sulfate and gastrointestinal endoscopy, which revealed multiple elevated lesions in the esophagus, predominantly on the distal esophagus.

Role of barium esophagography in patients with locally advanced esophageal cancer: evaluation of response to neoadjuvant chemoradiotherapy.

Purpose. This retrospective study examined the usefulness of barium esophagography, focusing on the luminal stenosis, in the response evaluation of neoadjuvant chemoradiotherapy (NACRT) in patients with esophageal cancer. Materials and Methods.

Extent of arterial tumor enhancement measured with preoperative MDCT gastrography is a prognostic factor in advanced gastric cancer after curative resection.

Objective: The objective of this study was to investigate the correlation between pathologic findings and arterial tumor enhancement at MDCT gastrography of patients with a prognosis of advanced gastric cancer after curative resection.

Materials And Methods: The cases of 41 patients with advanced gastric cancer (23 men, 18 women; age range, 35-92 years; median, 60 years) who underwent MDCT gastrography and optical endoscopy before surgery were retrospectively evaluated. Two radiologists reviewed virtual endoscopic and multiplanar reconstruction images to measure arterial phase CT values of the inner tumor margin and healthy gastric wall.

Prediction of intraoperative bleeding during endoscopic treatment in patients with early gastric cancers: utility of contrast-enhanced MDCT gastrography and the wall-carving image technique.

Purpose: To assess the ability of the "wall-carving image (WC) technique," which uses vascular images from computed tomography (CT) gastrography, to predict bleeding during endoscopic treatment in patients with early gastric cancers (EGC).

Materials And Methods: We analyzed the CT enhancement on WC images of 30 patients with EGC who were treated with endoscopic submucosal dissection (ESD). Patients were divided into two groups-a no-bleeding group and a bleeding group-according to the degree of intraoperative bleeding during the ESD.

Contrast-enhanced MDCT gastrography for detection of early gastric cancer: Initial assessment of "wall-carving image", a novel volume rendering technique.

Objective: We developed a new volume rendering technique, the CT gastrography wall carving image (WC) technique, which provides a clear visualization of localized enhanced tumors in the gastric wall. We evaluated the diagnostic performance of the WC as an adjunct to conventional images in detecting early gastric cancer (EGC).

Materials And Methods: Thirty-nine patients with 43 EGCs underwent contrast-enhanced MDCT gastrography for preoperative examination.

Unusual presentation of an esophageal foreign body granuloma caused by a fish bone: usefulness of multidetector computed tomography.

A 68-year-old woman had throat pain while eating fish. The pain gradually disappeared with no treatment. She visited her doctor for a medical checkup 1 year later, and an esophageal tumor was suspected.

[Radiological imaging of small-bowel tumors].

While diagnosis of small-bowel tumors is clinically difficult, imaging examinations have a great role in it. Small-bowel enteroclysis allows viewing of the entire small-bowel for evaluating tumor location, size, and shape. CT gives information on both the intra- and extraluminal features of small-bowel tumors, mesenteric abnormalities, and distant organ spread.

New prediction rule for mortality in acute mesenteric ischemia.

Objective: Acute mesenteric ischemia is potentially fatal, but prognostic factors have not yet been established. This study was undertaken to elucidate them.

Methods: This is a retrospective cohort study, consisting of 110 patients who had been treated in the past 5 years, from 26 national hospitals in Japan.

An analysis of the physiological FDG uptake pattern in the stomach.

The purpose of this study was to clarify the normal gastric FDG uptake pattern to provide basic information to make an accurate diagnosis of gastric lesions by FDG PET. We examined 22 cases, including 9 of malignant lymphoma, 8 of lung cancer, 2 of esophageal cancer, and 3 of other malignancies. No gastric lesions were observed in any of the 22 cases on upper gastrointestinal examinations using either barium meal or endoscopic techniques.